Nailing-machine for boots and like articles.



A. FRIGKE. NAILING MACHINE r011 BOOTS AND LIKE ARTICLES.

APPLICATIOKVPILED FEB. 8, 1912.

Patented Mar. 4, 1913.

J11 ve n tor:-

' struct-ion, and Fig. 7 a cross-sectional view 'ing at Ohligs, Rhineland, Germany, have sage.

UNITE STATES PATENT @FFQ.

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FRIGKE, OF OHLIGS, GERMANY.

NAILING-MACHINF FOR BOOTS AND LIKE ARTICLES.

To all whom it may concern Be 1t known that I, AUcUs'r Fnicnn. a sub3ect ot the Emperor of Germany,'res1d invented certain Improvements in Nailing- Machines for Boots and Like Articles, of which the following is a specification.

The present invention relates to a nailing machine for boots and the like'and consists in the provision, at the end of the race-way along which loose nails are fed by their own gravity, of resilient elements adapted to retain the nails, such elements being acted upon by the nail driver for releasing each nail separately. A. safe delivery of the nails is thus insured.

In one construction of the device the nails are delivered by the race- *ay into a throat-- block which is divided into two resiliently connected parts. the nails being released from the block by the driver which passes between the parts and separates them. According to another construction. which is adapted for use in connection with old arrangements, one part of the race-way is formed of a pivoted elementwhich turns aside when the lowermost nail is engaged by a plunger connected to the actuating lever at an ordinary nail driver, the nail being pushed by the plunger into the driver pas- In the accompanying drawings the invention is illustrated by way of example. Figure 1 representing a front view of the machine, according to the first construction. Fig. 2. a sectional view on an enlarged scale. of the race-way and ot' the nail-driver, Fig. a sectional view of the race-way for the second construction, Fig. 4, a plan of the same, Fig. 5, a side view of the lower part of the driver of the second construction, the raceway being shown in section. Fig. (3, a side view of the throat-block of the first conot the race-way.

A machine frame (I, carries a work support Z) against the upper end (2 of which the nailing is Uli'ected. The nailsl are fed from a hopper (Z through a race-way g which according to Figsgl and 2 is curved to form a seu'ii-circle. The race-way communicates with the hopper by means of a round aperture c and an elongated, sheltered slot f, the nail-heads massing foremost through the a r erture n and the bills through the slot Spaced walls It and 2' form the race- "atented Mar. a, 1913.

Application filed February 8, 1912. Serial No. 676,300.

way, the wall i being slotted throughoutits length to admit the bills of the nails. Atthe end of therace-way a throat-block is provided for the reception of the nails. This block is composed of the parts an and m which are pivoted at n and n respectively and which are cortrolled by a bolt 0 passing through the block-parts at right angles to their pivots. A helical spring 0 encircles the bolt 0 and tends to press the lower ends of the parts together, the dis tance between them being determined by a pin 3') connected to one part and abutting against the other. The parts are normally inclined away from the vertical in opposite directions and are fitted on their inner sides with conical grooves s forming together an upwardly flaring throat 'I'. At that side of sleeve '0 in which a rod in is slidaoly arranged. A flange or, at the upper end of the sleeve, supports a collar 2 which is acted upon by a hand-lever a for depressing the driver. A spring ti: supports the lever z, and a spring 12 abuts against the flange :r for raising the driver. The upper end of the rod '20 is projected through the collar and is hollowed to receive a spring 3. This spring abuts against the rod '11) and against a cross-pin 2 which is connected to the collar 3 and guided in a slot 1 in the hollow part of the rod.

lVhen the nail-driver is depressed, the lower end of the rod '10 is first applied to the nail-head which, since it is held in the recesses q (1 causes a. displacement of the rod relative to the sleeve and to the collar 3 and a compression of the spring The sleeve, which continues to descend, enters the throat Wand presses the lower ends of the block-partsapart. .This causes the recesses to release the head of the nail which is then driven into the work by the rod 10 under the influence of the spring 3. As soon the driver is withdrawn the throatblock assumes its normal position and a Fresh nail is put into position in the re cesses q 9 In the construction shown in 1 igs. 3 to the hopper; cl has a discharge aperture v tom plateand bending the lips in opposite directions. This aperture comnmnicates with the race-Way g by means of a duct 6 which is slotted to allow [the bills of the nails to protrude. The race-way is formed of two parallel, straight bars k placed in an inclined position and adapted to guide the nails between them. An L sectioned bar 7. or any equivalent element,; is so-arranged along the race-wa'yins to project over the heads of the muses- 1. retain thelatterwithin the race. A portion is-cut ziway fiminithe lower end of one of the bars is, said portion being replaced by a piece 8 which is pivoted at 9 and controlled by aspring 10. The nail-driver has in this case the ordinary construction, its actuating lever a being, however, so connected to-a plunger 11 as to raise the'same when the driveris depressed and thrust it downward when the lever.returns to its starting position. When the plunger is thus thrust downward it engages the-head of the lowermost nail in the raceway and forces it down into the driver passage, this being possible owing to the yielding of the piece 8 in opposition to the spring 10, The remaining nalls are retained in the race-way, and e resh nail 1s pushed into engaging position as soon as the plunger is withdrawn.

I claim Ina nailing machine, the combination with a race-way for loose nails, of a throat-f block arranged at the end'of said race-way and divided into two pivotally supported" parts, said parts having lateral recesses adapted to admit the lowermost nail into the throat, a spring tending to holdrthe lower ends of the blockparts together S0140 as to retain the nail-head within the recesses, an axially fi'ovable sleeve arranged so as to pass thi spring-actuated rod slidably' arranged in said sleeve so as to protrude through the lower end of the same and be arrested by the-nail in the throat-block, in opposition gh the throat-block, a

to its spring, while thesleeve is moved into" the block, the block-parts being adapted to be pressed apart by the intervention of the sleeve so as to release the nail and allow it 

